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/*
 * Copyright (C) 2012 ARM Ltd.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#ifndef __ASM_STACKTRACE_H
#define __ASM_STACKTRACE_H

struct task_struct;

struct stackframe {
	unsigned long fp;
	unsigned long sp;
	unsigned long pc;
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
	unsigned int graph;
#endif
};

extern int unwind_frame(struct task_struct *tsk, struct stackframe *frame);
extern void walk_stackframe(struct task_struct *tsk, struct stackframe *frame,
			    int (*fn)(struct stackframe *, void *), void *data);

#endif	/* __ASM_STACKTRACE_H */